#include <REGX52.H>

void Delay1ms(unsigned int xms)		//@12.000MHz
{
	unsigned char i, j;
	
	while(xms)
	{
		i = 12;
		j = 169;
		do
		{
			while (--j);
		} while (--i);
		xms--;
	}
}


void main()
{
	P2=0xFE;   //1111 1110
	Delay1ms(125);
	P2=0xFD;  // 1111 1101
	Delay1ms(125);
	P2=0xFB;  // 1111 1011
	Delay1ms(125);
	P2=0xF7;  // 1111 0111
	Delay1ms(125);
	P2=0xEF;  // 1110 1111
	Delay1ms(125);
	P2=0xDF;  // 1101 1111
	Delay1ms(125);
	P2=0xBF;  // 1011 1111
	Delay1ms(125);
	P2=0x7F;  // 0111 1111
	Delay1ms(125);
}